Heating and ventilating apparatus



July 2, 1929. A, HOPKINS y HEATING AND VENTILATING APARATUS Filed Sept. 6, 1927 2 Sheets-Sheet Nw ww uN (NN lNvENToR kim BY r6 ATTORNEYS July 2, 1929. A, HOPKINS '1.719.659 HEA'IIING AND VENTILATING APPARATUS Filed Sept. 6, 1927 2 Sheets-Sheet 2 INVENTOR A'ITORN EYS Patented July 2, 1929..

' UNITED STATES PATENT OFFICE.

ALFRED HOPKINS, OF BOSTON, MASSACHUSETTS, ASSIGNOB T HOPKINS-TULL IA- CHNEBY O0., 0F PHILADELPHIA, PENNSYLVANIA, A OOBPGBATION OP PENN- BYLVAN IA.

HEATING AND VENTILATING APPARATUS.

Application illed September 6, '1987. Serial No. 217,784.

This invention relates to an apparatus which may be used as a drier, temperature re ulator, and ventilator.

ne of the objects of the presentinvention is the provision of an apparatus suitable for use for a dry room, cabinet, oices and dwellin s where different tem eratures are require and for regulating resh air for the pur ose of Ventilating.

Anot er object of the invention is the provision of an apparatus adapted to create a current of comparatively cool fresh air, for heatin the air for controlling the flow of air to gbtain either hot or cool streams of air, or a mixture of both hot and cool air to produce warm air, and for `distributing the air issuin from the apparatus.

Wit the foregoing and other objects in view, the invention resides in the particular provision, relative disposition, and functions of the parts hereinafter fully described and illustrated in the accompanying drawing, in which- Figure lis a perspective view of an appa- 25 ratus embodying the features of the present invention.

` Fig. 2 is a vertical sectional view of the ap aratus.

. Fig

3 is a horizontal sectional view taken on the line 3-3 of Fig. 2.

Fi 4 is a erspective view of the air distributor conlduit, portions being broken away to better illustrate certain structural features.

Fig. 5 is a longitudinal sectional view taken on the line 5-5 of Fig. 4. Fig. 6 is a longitudinal sectional view taken ontheline6-6ofFi .4. y

The apparatus o the resent invention will consist of a single unit which may advantageously be arranged in, or arranged remote from but connected with a room, cabinet, or other place where different tem eratures are required, and for carrying out in operations, and ventilating operations.

e apparatus in the illustrated embodiment of the invention includes a frame 10 consisting of uprihts 11 in the form of angle irons connecte together by' members 12 and atop 13. A suitable casing 14 is suported by the uprights 11 of the frame 10. ll'he casing 14 has an air intake or inlet 15 at the top thereof, an air outlet 16 at the bottom thereof in vertical ali ,ent with the air intake 15, and arranged withiny the-casing is a bale 17 and a damper 18 which com bine with the walls, including the curved walls 19 of the casingto provide a duct 20 between the' intake 15 and outlet 16, and a by-pass 21 which communicates with the duct 20. The baillef17 is of angular` construction so as to provide deflecting portions 22 and 23.

The damper 18 is pivotally mounted as at 24, and has connected therewith a handle 25 which is arranged exteriorly of the casin 14 for moving the damper to dierent positions, indicated at A, B and C, for a purpose to appear.

In order to (produce a current of comparatively cool an fresh air and to force it into the air intake 15 of the casing there is provided a fan 26 which is driven by. an electric motor 27. The fan 26 and motor 27 in association are arranged on the top 13 of the frame 10. The casing' 28 of the fan 26 has an outlet 29 which enters the airintake 15 of the casing 14.

In order to heat the comparatively cool air entering the casing-14 there is rovided a heater 30 of any preferred type. Tiie heater 30 inthe present instance is a steam heater. The heater 30 is supported by the top and bottom walls 31 and 32 respectively of the casing 14. The heater consists of headers 33 and a series of copper finned tubes 34 connected in communication with the headers 33.

In order to distribute the air issuing. from the apparatus there is provided means consistin of a duct or conduit 35 consisting of inter tting sections 36 and 37. -The section 36 is connected with the air outlet 16 in any suitable manner. The section 36 is divided by longitudinally disposed partitions 38 to provide different length passages 39, 40 and 41 which communicate respectively withl openings 42, 43 and 44 in the top wall 45 of the section 36. The main section 37 is provided with a series of o enings 46 in the top wall 47 thereof throug which the air passes into the room or compartment for the purposes mentioned The air first enters the passa es 39, 40' and 41 in the section 36, then enters t e space 48 extendin the entire length of the conduit between t e top walls 45 and 47 respectively of the sections 36 and 37, thru the openings 42, 43 and 44, and then passes through the openings 46. One end of the section 36 is closed as at 49. The conduit 35 may be designed to suit any particular condition.

From the foregoing, it will be apparent that, when the dam er 18 is moved to the position indicated at l in dotted lines, the comparatively cool fresh air forced-into the'casing 14'through the air intake 15 will be compelled to pass through the duct 20, through the outlet 16 into the distributor conduit 35, and will issue in streams from the openings 46 in its cool condition. When the dam er 18 is moved to the position indicated at in dotted lines, the comparatively cool air entering the casing 14 through the intake 15 will be divided into currents respectively lio'wing into the by-pass 21 and the duct 20. The current of air entering the bypass 21 will be heated by the heater 30, whereas, the current of air iowin throu h the duct will not be materially a ected y the heat, due to rapid `h circulation. The heated current of air will flow and be mixed with the comparatively cool current of air at a pointdirectly above the outlet 16. As a consequence warm air willbe -iowing into the conduit to be distributed thereby in streams. When the damper 18 is in the position shown at C in full lines ail of the cool'air entering the casing 14 through the air intake 15 will be caused to enter the bypass 21. This air will be heated by the heater 30 and will pass from the lower end' of the by-pass 21 directly into the air outlet 16 intothe conduit 35 to be distributed thereby in streams in a heated condition.

From the foregoing it will be understood that the apparatus of the present invention serves for producinga liow of air of dilerent temperatures, either cool air, hot air, or warm air; and thatpthe apparatusV may be used for Ventilating, for varying ythe temperature in a room or compartment, and for carrying out drying operations particularly when heated air is caused to issue from the apparatus.

The walls of the casing14 may be provided with a jacket 50 in which suitable heat insulating material 51 may be placed. The damper 18 may also be controlled by a thermostat to give a constant temperature.

I claim:

1. An apparatus for optionally inducing a current of comparatively cool, hot, or warm air, said apparatus having anA outlet for the current of air and in combination, means connected with the apparatus for distributing the air, said means consisting of a perforated main duct, and a plurality of ducts of different lengths communicating with ythe outlet of the apparatus and with the main duct.

2. An apparatus for optionally inducing a current of comparatively cool, hot, or warm air, said apparatus havin an outlet for the current of air, and in com ination, a conduit of interfitted sections connected with said apparatus for distributing the air, one of said sections formed to provide passages of different lengths each of which communicates with said outlet at one end and its opposite end communicating with a space between the sections extending the entire length thereof, and the other section having one or more air outlets communicating with said space.

ALFRED HOPKINS. 

